JPH0670118U - Tape wire with shield - Google Patents

Abstract

(57) [Summary] [Purpose] It can be used regardless of the position of the ground wire connection terminal of the connector on the shielded tape electric wire. [Structure] The conductor of the tape electric wire has a two-layer structure of an upper layer 11 and a lower layer 12, and has a separable structure as required. The upper layer 11 of the conductor at a desired position corresponding to the ground wire connecting terminal of the connector is covered with the shield tape 60 as a drain wire and shielded to form the shielded tape electric wire 9. [Effect] The drain line can be formed at any position of the conductor, and it can be manufactured even if the position of the ground line changes depending on the model used, and the manufacturing efficiency can be improved.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a shielded tape electric wire, and more particularly to a shielded tape electric wire that can appropriately cope with any position of a connection terminal of a drain wire of a connector.

[0002]

[Prior art]

 2. Description of the Related Art Conventionally, tape electric wires, which do not require a space for wiring between substrates, have been known as electronic devices have been downsized and mounted at high densities. As shown in FIGS. 3 (a) and 3 (b), the tape electric wire has a plurality of conductors 1 arranged side by side, and the end portions 1a of the conductors are exposed and fitted into a connector for connection. The conductor 1 is sandwiched between the plastic tapes 2 each having a window on at least one side of the end portion 1a, and these are fused and integrated, and then the reinforcing plate 3 for reinforcing the end portion 1a of the conductor 1 is provided. It is attached and formed into a thin and flexible tape electric wire 4.

Such a tape electric wire 4 is required to have a shield due to problems such as noise, and as shown in FIGS. 4A and 4B, a ground wire 5 is provided on the plastic tape 2 and a shield tape is provided. There was a tape electric wire with a shield 7 wrapped around. However, such a ground wire 5 has to be formed in a separate process after the tape wire 4 is manufactured, which causes a problem that the contact pitch 8 is not accurate.

[0004]

[Issues to be solved by the device]

 For this reason, there is also one in which a specific conductor has a two-layer structure, the conductor of the upper layer is folded back on an insulator, the folded conductor is covered with a metal foil for earth treatment, and a shield tape is applied on it. 62-77814). Also, in some conductors, a specific conductor was used as the ground wire, and the drain wire was superposed on the ground wire and crimped so that the ground wire and the drain wire could be kept in a conductive state so as not to separate. (JP-A-3-108206).

However, in the case of the shielded tape electric wire, since the terminal number of the connector for connecting the drain wire differs depending on the electronic device used, the drain wire is formed at a predetermined position. The production efficiency was poor. The present invention has been made to solve the above-mentioned drawbacks, and the drain line can be configured at any terminal position, and therefore, it can be arbitrarily applied to any device and the contact pitch can be improved. It is an object of the present invention to provide a shielded tape electric wire which is also accurate and can be manufactured efficiently by simplifying the manufacturing process.

[0006]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the shielded tape electric wire of the present invention has a plurality of conductors arranged in the longitudinal direction, excluding the terminal portion, which are sandwiched by insulators from both surfaces and are all integrated conductors of a tape electric wire. It has a two-layer structure, and an upper layer of a conductor at a desired position is folded back on an insulator to cover the conductor with a conductive tape to form a shield body to form a drain wire.

[0007]

[Action]

 The conductor of the tape electric wire, which is formed integrally by sandwiching the conductors from both sides except the both ends of the conductors arranged in parallel in the longitudinal direction, has a two-layer structure. Therefore, the conductor at the position corresponding to the connection terminal position of the connector's ground wire can be used as the ground wire, and the conductor in the upper layer of the two-layer structure is bent on the insulator, and the folded back end is inside. A shielded tape electric wire can be manufactured by shielding a drain wire by shielding with a shield body having a metal layer. For this reason, since it is possible to collectively manufacture without being restricted by the position of the ground line connecting terminal of the connector, it is possible to improve the manufacturing efficiency and to form the contact pitch constant.

[0008]

Embodiment An embodiment to which the shielded tape electric wire of the present invention is applied will be described with reference to the drawings. As shown in FIGS. 1A and 1B, the shielded tape electric wire 9 includes a plurality of rectangular conductors 10 arranged in the longitudinal direction, and the rectangular conductor 10 is a plastic tape 20 which is an insulator from both sides. It is sandwiched. At least one surface of both end portions 10a of the rectangular conductor 10 is exposed without being provided with the plastic tape 20, and is fitted and connected to the connector. Further, a reinforcing plate 30 is attached to the back surfaces of the exposed portions of both end portions 10a of the rectangular conductor 10 to reinforce the exposed portions of the conductor.

The flat conductor 10 as described above has a two-layer structure including a lower layer 12 and an upper layer 11, and is in a conductive state with each other and can be separated as necessary. If the ground line connection terminal position of the connector is at the end position in the figure, for example, the conductor of the lower layer 12 becomes the ground line and the conductor of the upper layer 11 becomes the drain line 14. The conductor of the upper layer 11 is bent on the plastic tape 20 and wound by the shield body 60. The shield body 60 has a metal layer on the inner side and a plastic layer on the outer side. The shield body 60 is connected to the end of the drain wire 14 and is insulated from the outside.

Therefore, regardless of the position of the ground wire terminal of the connector, the conductors at the corresponding positions are appropriately used as the ground wire and the drain wire. Can handle it. To manufacture the shielded tape electric wire 9 having such a structure, first, the tape electric wire is manufactured by the tape electric wire manufacturing apparatus S. The manufacturing apparatus S includes a primary heating roller 15 composed of a pair of metal rolls with a temperature adjusting mechanism for temporarily fixing a plastic tape 20 that sandwiches a flat conductor 10 having a two-layer structure, which is supplied in parallel in the longitudinal direction, from both sides. A pair of secondary heating rollers 16 composed of a silicone roller with a temperature adjusting mechanism for firmly fixing the plastic tape 20 is provided, and the secondary heating rollers 16 are separately driven to apply the back surface of the plastic tape 20. The tape is adhered and fixed with a heat-fusible adhesive and the pulling drive can be performed by the surface friction of the tape. As described above, one of the plastic tapes 20 to be bonded to each other is provided with a perforated portion 18 for perforating rectangular windows 17 at predetermined intervals before being adhered to each other, and a conductor for connecting to the connector is provided. The exposed portion of the terminal portion 10a is formed. Then, after being temporarily fixed by the primary attachment roller 15, a reinforcing plate forming part 21 having a reinforcing tape supply part 21a and a heating plate 21b for attaching the reinforcing plate 30 from the back side provided with the window 17 is provided. The reinforcing plate 30 is temporarily fastened by being driven in synchronization with the running speed of the plastic tape 20. After that, when the plastic tapes 20 are bonded to each other by the temperature-adjusted secondary bonding roller 16, the reinforcing plate 30 is also firmly fixed at the same time, and the manufacturing time can be shortened. A side cutter 24 that cuts both side ears 23 of the tape-shaped continuous body 22 after the plastic tape 20 is firmly adhered and an end cutter 25 that cuts the tape-shaped continuous body 22 in a direction orthogonal to the longitudinal direction are provided. The tape electric wire 40 in the shape of is formed.

Thereafter, the upper layer 11 (drain wire 14) of the rectangular conductor 10 at a position corresponding to the ground wire connecting terminal of the connector in which the tape electric wire 40 is used is folded back on the plastic tape 20, and the folded terminal is covered. The shield tape 60 is attached to the outer circumference of the tape electric wire 40. The shield tape 60 has a laminated structure of a metal foil on the inside and a plastic on the outside, and connects the drain wire terminal and insulates it from the outside to form the shielded tape electric wire 9. For this reason, the ground wire and the drain wire can be formed at desired positions only by changing the position of the conductor to be folded back. Therefore, even if the tape wire is continuously manufactured using the manufacturing apparatus S, it is used. It is possible to continuously manufacture a shielded tape electric wire that corresponds to the equipment, and to manufacture a shielded tape electric wire in the same flow as a tape electric wire.

[0012]

[Effect of device]

 As is clear from the above description, according to the shielded tape electric wire of the present invention, since the conductor of the tape electric wire is formed in the two-layer structure, the conductor at the position corresponding to the position of the ground wire connecting terminal of the connector is formed. It can be used as a ground wire or drain wire, and it can immediately respond even if the connection terminal position of the ground wire differs depending on the equipment used. Therefore, the manufacturing efficiency can be improved and it is economical.

[Brief description of drawings]

FIG. 1 is a side view and a top view showing an embodiment to which the present invention is applied.

FIG. 2 is a configuration diagram showing a manufacturing apparatus for manufacturing the shielded tape electric wire of the embodiment shown in FIG.

FIG. 3 is a side view and a top view of a conventional example.

FIG. 4 is a side view and a top view of a conventional example.

[Explanation of symbols]

 9 Shielded tape wire 10 Conductor 10a Conductor end 11 Conductor upper layer 12 Conductor lower layer 14 Drain wire 20 Plastic tape (insulator ) 60 ... shield body (shield body)

Claims (1)

[Scope of utility model registration request] 1. A tape electric wire in which a plurality of conductors arranged in parallel in a longitudinal direction except an end portion are sandwiched by an insulator from both surfaces and integrated, and all of the conductors have a two-layer structure. A shielded tape electric wire, characterized in that an upper layer of the conductor is folded back on the insulator to cover the conductor with a conductive tape to form a shield body to form a drain wire.